Really? I don't think so. I remember the Republican Senate's treatment of the Obama SCOTUS nomination of Merrick Garland with 10 months to go in his Presidency, which McConnell definitively claimed was just too short to ever ratify -- while with 40 days left to go, McConnell aided and abetted Trump's appointment of Amy Comey Barrett. In case you don't recognize it, this is blatant hypocrisy and an abuse of the power he wielded.I think Republicans can figure what is ethical without your advice.
I put that squarely under the "unethical" column. Do you march to a different ethical drummer?